For ADB mode sync, your Android device needs to have USB Debugging enabled.You need to enable USB debugging mode to communicate your phone with the Bitwar for Android.
Due to the different Android versions, there are three ways to enable USB debugging.
● Scan the QR code with your device to enable USB debugging.
● Download apk for root:http://u.bitwar.net/android/usbdebug-mu.apk
● Enable USB Debugging Mode for Android Phone Manually:
View the System version
1.Go to Android home screen.
2.Tap "Settings".
3.Scroll down to the bottom and tap "About phone" or "About Device",Then you can find the Android version of this phone.